Dynamo-electric machine.



C. A. PSILANDER.

DYNAMO ELECTRIC MACHINE.

APPLICATION FILED JAN. 16, 1906.

1,013,216. Patented Jan.2, 1912.

3 SHEE TS-SHEET 1.

/ 2 g z I. WE,

WITNESSES:

6 {75M gab/{124W (044, 6. 6% BY v 2 ATT'ORNE'Y I G.A.PSILANDER. DYNAMOELECTRIC MACHINE.

APPLICATION FILED JAN. 16, 1906.

1,01 3,21 6. Patented Jan. 2, 1912.

3 SHEETSSHEET 2.

coumnm PLANIJG c WITNESSES:

@{Qk/ QMOQOM O. A. PSILANDER.

DYNAMO ELECTRIC MACHINE.

APPLICATION FILED JAN. 16, 1906.

Patented Jan.2,1912.

a SHEETSSHEET s.

lllllllll/I/I/l/ INVENTOR ATT.ORNEY COLUMBIA PLANOGRAPH c0..w/\smN'nTON.D. c,

UNITED STATES PATENT oEEIoE.

CHARLES A. PSILANIDER, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTING-HOUSE ELECTRIC & MANUFACTURING COMl A-NY, A. CORPORATION OF PENNSYL-VANIA.

Application filed January 16, 1906. Serial No. 296,330.

To all whom it may concern:

Be it known that I, CHARLES A. PSI- LANDER, a citizen of the UnitedStates, and a resident of Pittsburgh, in the county of Allegheny andState of Pennsylvania, have invented a new and useful Improvement inDynamo-Electric Machines, of which the following is a specification.

My invention relates to dynamoelectric machines and particularly tomotors that are employed for the propulsion of electric railwayvehicles.

The object of my invention is to provide a novel and improved structurefor such machines whereby ventilation thereof may be readily effected.

Figure 1 of the accompanying drawings is a view, in end elevation, of aportion of an electric railway motor embodying my invention, part of thestructure being broken away. Fig. 2 is a View, in section, on line IIIIof Fig. 1, of a part of the motor shown therein, and Fig. 3 is asectional view, on the line ABC of Fig. 1, of a part of the structureshown therein.

An axle 1, that may be the axle of an electric locomotive or othervehicle upon the ends of which driving wheels 2 are mounted, issurrounded by a quill or sleeve comprising two parts 3 and 1- the outerends of which are provided with either flanges or radial arms 5 havingbosses 6 that project into corresponding chambers 7 in the drivingwheels, the bosses being surrounded, within the chambers, by resilientmeans, such as springs 8. The inner, smaller ends of the quill sectionsare inserted into opposite ends of a cylindrical portion 9 of asupporting structure for a laminated armature core 10 having ventilatingspaces 11 between certain of the laminae, the supporting structurecomprising also a set of longitudinal ribs 12 upon which the laminatedcore is directly supported and webbed radial arms 13 between whichlongitudinal passages 14: and circumferential passages 15 are providedfor ventilating purposes. Apertures 16 in the cylindrical portion 9provide communicating passages between the passages 14 and 15 in thearmature structure and the interior of the quill.

A field magnet core 17 is supported by and inclosed within a structureor frame comprising two sections 18 and 19 that may be secured togetherby means of bolts 20. The

Specification of Letters Patent.

DYNAIVIO-ELECTRIO MACHINE.

Patented Jan. 2,1912.

frame is carried upon removable end brackets 21 and 22 that containhousings for bearings 23 and 24, respectively, whereby the fieldstructure is mounted upon the quill in such manner as to permit ofrelative rotation between it and the armature. The upper section 18 ofthe field magnet frame is provided with a downwardly extending inletport 25 that may communicate with any suitable source of air-pressure(not shown) and that is continued by means of longitudinal communicatingrecesses or channels 26 and 27 formed, respectively, in the adjoiningedges of the upper and lower sections 18 and 19 of the field magnetframe. The end bracket 22 is provided with a passage 28 thatcommunicates, at one end, with the passage formed by the recesses 26 and27 and that opens, at its other end, into the chamber which contains thearmature and the field magnets, the discharge end of the passage 28being so shaped as to direct the currents of air into one end of thesupporting structure for the armature.

Conveniently spaced openings or exhaust ports 29 are provided in thefield magnet frame and other ports 30 and 31 are provided in the endbrackets of the housings for the bearings. As is usual in machines ofthis class, flanges 32 are placed upon the quill sections, between thebearing and the remainder of the rotatable structure, from the flarededges of which oil, that creeps from the bearings along the quill, isthrown into corresponding annular recesses 33 in the inner faces of theend brackets 21 and 22. The oil is conducted, by means of these annularrecesses, into chambers 34,-, in the lower parts of the housings, whereit is collected, any excess overflowing to the exterior through openings35. In the present instance, the openings 35 serve also as exhaustports.

In the operation of my invention, air will be forced into the inlet port25, through the passage formed by the recesses 26 and 27, in therespective sections of the field magnet frame and the passage 28 inthe'end bracket 22, and be discharged into the chamber containing thearmature and the field magnets. A portion of the air that is directedinto the longitudinal passages 14 in' the armaturesupporting structureis deflected through the ventilating spaces 11 in the armature core andcirculates about armature windings 36 and field magnet windings 87. Theair escapes from the inclosed chamber through the exhaust ports 29 inthe field frame, through the passages 30 and 81 in the end brackets andthrough the apertures 16 in the supporting structure for the armaturecore, all as indicated by arrows.

It will be observed that, not only is the motor structure properthoroughly ventilated, but drafts of air are also directed through thebearing housings and the quill structure, thereby avoiding dead airspaces, which might serve as heat insulators. The temperature of thebearings also is, in this manner, prevented from exceeding apredetermined degree.

I claim as my invention:

1. In a dynamo-electric machine comprising field magnet and armaturecores, the combination with an inclosing casing that supports the fieldmagnet core and is pro vided with an inlet port and with a plurality ofperipheral exhaust ports, of end brackets for the field magnet casingthat serve to support the field magnet bearings and are provided withexhaust ports and one of which is provided with a passage thatcommunicates with the inlet port and discharges into the casing.

2. The combination with an axle, and a surrounding sleeve or quillhaving an internal diameter that is materially greater than the externaldiameter of the axle, of a dynamo=electric machine mounted upon thesleeve or quill and comprising field magnet and armature cores andcoils, an inclosing casing having an inlet port at one end and aplurality of peripheral exhaust ports, and an armature core supporthaving exhaust ports opening into the sleeve or quill.

3. The combination with an axle, and a surrounding sleeve or quillhaving an internal diameter that is materially greater than the externaldiameter of the axle, of a dynamo-electric machine mounted upon thesleeve or quill and comprising field magnet and armature cores andcoils, an inclosing casing having an inlet port at one end andperipheral exhaust ports, and an armature support having additionalexhaust ports that open into the sleeve or quill.

4:. The combination with an axle and a two-part sleeve or quillsurrounding the axle, of a dynamo-electric machine mounted upon thesleeve and comprising field magnet and armature cores, an inclosingcasing, and a supporting structure for the armature core, inlet portsbeing provided through the inclosing casing and outlet ports being provided in the supporting structure for the armature core to dischargeinto the interior of the quill between the ends of the two partsthereof.

5. The combination with truck wheels and their axle, of a quill looselysurrounding the axle, a field magnet structure having an inlet port anda plurality of peripheral exhaust ports and an armature structure havingventilating passages and ports opening into the space between the quilland the axle through which exhaust is effected.

6. In a dynamo-electric machine comprising field magnet and armaturecores, the combination with a two-part inclosing casing that supportsthe field magnet core and has inlet and exhaust ports and a passage thatcommunicates with the inlet port and is formed by channels in theadjoining edges of the two parts of the inclosing casing, of a bracketthat support-s a field magnet bearing and is provided with a passagewhich communicates with the passage in the inclosing casing anddischarges into the interior of the casing.

In testimony whereof, I have hereunto subscribed my name this 10th dayof January, 1906.

CHAS. A. PSILANDER.

lVitnesses:

EDVIN TIDLUND, BIRNEY HINES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

